Car-coupling.



No. 819,314. PATENTED MAY 1, 1906.

A. H. RENSHAW.

UAR COUPLING. APPLIGATION'I'ILED SEPT. s, 1904.

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No; 819,314. PATENTED MAY 1, 1906.

A. H. RENSHAW. CAR COUPLING.

APPLICATION FILED SEPT. 3, 1904.

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sosrrrrss r TENT orrron RENSHAXV, or nAenrucoNNsonc-Ur.

specification of Letters letent.

recanted May 1., 1906.

Application filed Seytember S, 1904. ,Seriel No. 223,170.

l u-imm may concern:

an that I, ALFRED H. RENSHAW, i on of the United States, residing at Donthe county of Fsirlield and State of icct-icut, have invented certainnew and h the ioliowing is 2 specification.

iS invention relates to certain new and improvements in csr-cuplers ofthe Lnown es rho knuckle or Master (Jorrersl type; and the objects ofshe inveni are to provide 2, coupler which shallhe in lie inconstruction end-operation, thorig ly efiicient and serviceable in use,and

ciicullv automatic in action.

ei" having the features of construction, garment oiperts, and i-he modeof suhstmiiielly as hereineieer sot e uccompinying druwin'r, Figure 1.incl plan View of c cencoupler em- .y improvements with i-he portseirnorrnel locked osition, the outc-n of a car-body sing also shown.rrical longitudinal section on izhe Fig. 3 is a like section showin is;elevated. Fl 4 is a vertical i i ect ion on rho inc 4 4, Fig. i, *ithzhein normulposition, Fig. 5 is s hire section showing the posilio "of theparts with the lrhuckle open. Fig, 6 on enlarged perspective view of theknuckle. Fig. 7 is an enlarged perspeclive View or the operatingrod.igs'S and 9 are cross-sections of the operating-rod, taken,respectively, on the lines 8 8 and 9 9, Fig. 7. -Fig. 10 is a plan viewof the operating-rod with the knuckle-opening finger thereon. Fig" 11 isan enlarged perspective view of the knuckle-opening finger, sndllig; i2is an enlarged perspective view of She loclzhlock. i i i in carrying outmy invention one object been to maintain the general form of the vi llknown i'lrojan ecu ler, wherein the coupler is operated from he sideinstead of the top, thus efiectually excluding sand, revel, cool, andother substances which are to enter and clog couplers of other forms. erobjects have been'to reduce the ieverusually required to unlock couplersoi general cl'icrccter, to QVOld'iJhG necessii he trcinmen going betweenshe cars to a d i; she knuckle preperstorylo makings coupling, lzoprovide im roved inesus for efon automatic ock sci cndits re iulimprovements in Cur-Couplings, of-

these ends the invent-ion consisr-s in h and release it without goingbetween the cars. I will now proceed to describe the preferred 1 thedrawings, although it will be understood 'vided with the usual guard-armA and may embodiment of my invention as shown in 5 that the details ofconstruction may be vuried within cert-sin limits without departing fromthe spirit and scope of the invention.

A designates the drew-head, which is porin general be of any suitableconfiguration. Pivofiilly mounted in the draw-heed on the pivot-pin 1 isthe knuckle B, having the lockln -arm BC-which normall extends into thelug-sockets d in lzhe head.

block eccentric to the head, and this knuckle may be provided withsuirsble offset portions to limit its movements in the head or beotherwise shaped, as occe sion may require.

, C is the lock-block, which'mcy be pivoted, in the drew-heed in anyconvenient manner so as to swing in averticsl plane into and out oflocking engagement with the arm B of the knuckle when the letter isclosed; but, as pre ferred, the lock-block is provided withlaterslly-extending trunnions 3, adapted to beer- This lock-block issuiia'bly shaped and when in looking position rests on the bottom of thedraw-heed and fills the space between the locking-arm of the knuckle andthe vertical web .5 of the head, Fig. 1. When thelock-blockiselevitedabove the ath of movement of the locking-arm, the nuckle is free toswing to its open posilion, and .when the knuckle is fully open thelock-block normally rests upon the locking-U 5 arm, Fig. 5, in readinessto fall into locking position in front of the arm when the knuckle isagain closed.

is on operating-rod extending transversely through an opening 6 in thelockioc ivot of the letter and free to turn in suibab e bearings 7' 7 inthe drew-head. This operating-rod preferably terminates at its outer endin an eye 8, to which is loosely connected 8, hand-rod E, exiending tothe side'of the cerand provided wit-ha handle 9 at a right angle to thebody of the rod and normally occupying a vertical position. if desired,an eye 8 (shown in dotted lines inEig. 10) may be pinned to theothor'end of-llieo rating-rod, so that she rod can he operated em eitherside of the our.

awn, rho body portion of the operating- P cnorsliy circular incross-section cod somewhat in diameter for a --.v mion r its length, asat 10, forming an 'hnlnr shoulder ii. The portion 10 is provided wiiii arccess 12, at one side of which n prr 'c-ciion or rib i3, whioli, asbest illustrated ii. .Jig. incroasns in depth at its outer I, end, as at1 4-, for a purpose wl'iich will hereinafter appear. The recess .12 isadapted to receivo a pro iootion or rib 15, cxiendii'ig inard from thoupper side of the opening .6 in ihc inch-block when the latter is inlooking position, Fig. 2. {in burning; the operatingrod L in the:Jiirection of the arrow, Fig. .2, the rib 23 engages tllflfjfi'je 16 ofthe rib 15 with n coin-ii s action, :hreby-rsising the biocl; touniooking position, lFig. 3, on tho rib i3 pnssiilboneath the rib yesthe innsr inoepiy and holds olovnted.

*sting'on the rib 13 maintains The operation of the linnokle is moved to2i boss 19 on tiielocking the under side of oci; our. of engagement lllisreb v releascs oonneolzod operating-i1aniivonpon descends under in,returning {he mm in Fig. li'ith tion in the automatic locl zset bf3-iocd it is sometimes desirable to 'wk-bioek'C perinanenti, in its ion,Fig. 5, so that the lrnncklo to swing on its pivot. Thi soinanont loci;set is ciiected by ind thcn pushing inward the operatpfi mi. 3') bymeans of the hand-rod E until 'i'ld. eye 8 or other projection on therod D engagcs vertical locking-shoul lcr 20 on the draw-bond, Fig. i. inthis position the o crating-rod is securely looked against ban wsrdrotntion and must be first drawn out ward w th the. hand-rod E until theeye again clears i e shoulder before the parts can return to no "rialposition. It will be seen that by construction the eniployinentof aspecial aclret' on the car for holding, tho hand-rod porinsnontly inposition to maintain the coupler unlocked is dispensed with.

it frequently happens that the Wrong.

The weight oi the.

this oosition, ihe facs 15 being" (nod to sihird a iirni bearing thelooinbioclz cle-- i --cailod automatic l om its horizontal to raisingiii-o loclobloclr in the. manner i on the locking-nan of f ind, theports are in positic oonpiing will be undr-rmeans be provided wherebyafter'the lockblock has been raised and set for uncoupling by theautomatic lock set it may be again returned to locking position Withoutfirst opening the knuckle to effect its release. This is accomplished inthe present instanoe by pushing the operating rod D axiollv inward untilthe extended portion 14 of the rib 13 engages the adjacent end of therib 15 of the look-block, raising the latter slightly iLlDOVG the. mainportion of the rib 13. whereupon the said rod may be roadily turnedbrick to its normal position and the lock block lowerod. 3

lVhen the knuckle is unlockedii it, may be moved to its 0 en positio'nreadizfor coupling by a knuck e-opcnin'g finger. i, mounted on the rod Dand adapted to be 0 erated thereby. This finger consists of a. nib 22and a substantially radial fingerportiol'i" 23, the hub having anopening 2% toreceifi'o the rod, a slot 25, Fig. 5, ernutting the"fi'zilasage of the rib 13 in assem ling the ms. en in normal positionon the rod, 'gs. 4 and 10, the hub is confined between the shoulder 11and the outer end of the iii) 13, which enters an arc-shaped recess 26in the inner. side of the hub and wherein the rib is free to playbetween the end walls 27 27, Fig. 11,

Upon turning the hand-rod E to unlock the coupler the locloblock willfirst be raised above the locking-arm B, Fig. 5, as before explained,when the continued rotation of the rod will bring the rib 13 intoengagement "with one of the walls 27 of the recess 26 of the finger,Fig. 11, whereupon tho'finger'por tion 123 will be forced against the,outer-inclinod face of the locking-arm of the knuckle, Fig. 5, causingthe latter to swdng'opn, the finger pushing the looking-armq-untilz the"knuckle is fully. open. In the latter pi) ition, the lock-block beingsupported by'tlie boss 19 of the locking-arm B, the opomfiingrod is freeto return to its normal position under the influence of the Weight of'thehandle 9Q \Vhen the knuckle a 'a'in closes, os'rinscoup ling, thelocl'obloclr will fall into loclging position, as before. In theposition of the parts shownliisl ig. the shou (ler 17 on the rod D engaes the shoulder 18 on tho locking-block. y" this --const'ruction therotation of the rod in turncouplcr is unlocked by mistake or otherwise;i bci'ed. 'hcn in its lowermost pos ition the and it is thereforeimportant that suitable free end of the finger preferably extends intoan opening '28 in the lower well of the draw hea It will be apparentthat-in a coupler constructed substantially as herein set forth theknuckle may be unlocked and adjusted to its verious positions forcoupling and uncoupling by means of the bend-rod, thereby melting itunnecessary for the trainmen to go between the cars for this purpose. Itwill further be 10 seen that little power is required to effect thesevarious operations-and that the coupler is composed of few parts, whichare not liable to break or get out of order.

Without-limiting myself to the precise con- 1 struction and errengementof pertsset forth, I clsiinv 1. The combination of n drew-heed, eknuckle, at pivoted lock-block, an operatingrod engaging the lock-blockeccentric to its m3 pivot and adopted. to lift and hold the lOC-lihlocltelevates, end a, hend rod whereby tohoth'lift and release the loch-blockfrom the side of the car, substantially as set forth.

The combination of s drew heed, s

7v," l nucl zle. lock-block, end on 0 on at ng; through the lock-blockcc ..t ,i the letter, and adept ed. o e-block on its pivot when the rsubs tislly as forth. 3o I e dr' reed, e oiv-- otea u locieoiocir, encan o ereting-r Xtend transversely trough t 10 lock-block. eccentric tothe pivot of the letter, end adopted to lift the loch-clock end 5 holdit in its elevated position when the rod is turned, substantially es setforth.

ll The combination oi e drc, need, a pivote-cl knuckle, apivotecl'locli-bloch heving a transverse ope Z ng eccentric to its pivote projection nding into ssid opening, and

operating-roe. extending through said w e" s d provided with eprojection A 1 *1 it engage the pro ect ono hiocs.

t thebloclzwhen tl'i ly set torth. The comhinetion of e e "heed, edknuckle, pivoted iocL. hlocl; he,

averse opening; end a projection extend:- opening end providedwithuninhueringdece, end an opereting-rod nevprojection adopted to firstengage the 1 the projection. on the block to lift the to tneirengs 'eseid inner face of nroection to hold the block elevated,

ntielly as set forth. The combination of e drew-heed, e pivu knuckle, e,oivoted lock-block, en oper- "od ester). lug through the lock-block ieto the pivot oi the letter, means on p l rod for lifting the lock-blockand holding it in elevated position, and means on the knuckle forreleasing the lock-block, substantially as set fortl 7:. The combinationof e drswdmsd, opiuot'etldrnuckle having it lockingarm, e piv e rod. isen oted lock-block, en 0 crating-rod extending through the lock-bloceccentric to the pivot of the letter, means on said rod for lifting thelock-block and holding itin elevated position, and a boss on thelocking-arm of the knuckle for releasing the lockb'lock, substantiallyas set forth.

8. The combination of e'clrew-heed, a pivoted knuckle, s pivotedlock-block having a transverse opening eccentric to its pivot, onoperating-rod extending through seid-"opening and having it rib ads tedto lift the block and hold it elevated, an e boss on the locking-urm ofthe knuckle adapted torelees'e the lock-block, substantially as setforth. 8o

9. The combinstion of e drew-heed, e knuckle, e pivoted lock-block, enoper rod eccentric to the pivot of theloch adopted to lift the latterand hold it ele means on the knuckle for raising t'h block out ofengegenient with the 1" means for automatically returning the its normalposition, substantially as set '10. The combination of e drew-inknuckle, e pivoted-locli-bloclt, suspending rod eccentric to the pivotof the loch-hloclr. sdepted. to lift the letter and hold it elevated,means on the knuckle for reising the lock block out of engagement withthe rod, d hand-rod heving e hsndle adopted to auto o5 ieticslly returnthe operating-rod to its nor- Incl position, substantially set forth.

1'1;- The combination of s 'draW-heed, a.

knuckle, c locloblock, en operating-rod hevin s rib adapted to liftthelock-block and hotd it elevated, at boss on the locking-mm of thelmuclrle, e hsinduod connected to the op eretizig-rod. end. having ehandle extending one side only and normally occupying e ioel position,substantially as set forth.

The combination of .e drew-heed, e piv ted ic'ile, e pivoted locloblock,an oppted o lift the'loclebloch, e fun or loose on said rod, and h tweenthe rod. end finger reby the finger is operated to open the nuclcle theloclobloclc is lifted, substen:

. es forth.

33. The coinhinetion of a, drew-heed, e pivoted. knuckle, e, pivotedlock-block'h.sving e trensve'rse opening, an o crating-rod ex tendingthrou h the lock-b och and having s rib, and s chuckle-opening fingerloosely h; i l 1 adapted to be ere ud rib, substantially as set forth.

14:. The of e dravwhesd s Z pivoted hnuc edloch-blocs, an operstinguodfor hie-elite rotsteble lmucl-zleopening finger curried h on the rod andtin er who J teted only after t e rod hes li block, substantially as setfort; I

15. The combination of e drew-heed, e knuckle, e lock-block, a rotatingand sliding operating-rod therefor he ring on eye; e hendrod secured tothe eye, and erertieel looking- SikOillCifiI on. the draw-head. adoptedto be engaged by said eye, substantially as set forth.

l6. operating-rod for a loclobloelr, consisting of n bod substontisllycircular in erosssection and reduced in diameter for e portion of itslength and having a recess in its reduced. portion adopted to receive itrib on tlielook-bloclr, and a projection or rib at one side of saidrecess, substentially as set forth. v

17. An operating-rod for a lock-block, consisting 'of'a. bodsubstantially circular in cross-seetion and reduced in diameter for oportion'of its length and having a recess in its reduced portion adaptedto receive a rib on the lock-block, a projection or rib st one of saidrecess, and an eye at one end of the rod, substantially as set forth.

18. An operating-rod for s look-block, con sisting of a bodysubstantially circular in cross-section and reduced in diameter for aportion of its length forming an annular shoulder and having a recess insaid reduced portion adopted to receive a projection or rib on the loeliblock, and aprojection or rib at one side of said recess, said ribincreasing in depth at the end adjacent to said shoulder, substantiallyas set forth.

19. A lock-block adopted to be pivoted at its inner end and having anopening trainsversely tliercthrmigh eccentric to the pivotpoint,substantially as set forth.

20 A lock-block adapted to be pivoted at its inner end and having anopening trans- *er side of the ofaening and haying e co. lbw v l l a l lversely therothrongh in. advance of the pivoton operetingfiod, and aprojection or rib Hi tending inward from the upper .ortion ofseid'opening, substantially as set 01th.

23. A pivotal lock-bloolrheving on open: ing trensversely through itsbody end T lest-ion or rib extending inward from t" time, substentie las set forth;

A. knuckle-opening finger consisting of a hub and a substentislly'rediellinger tion, the hub having scentrel opening, and slot in the Wall ofsaid opening; substantially as set forth.

-25. A knuckle-opening finger consisting of a hub and a substantiallyredial finger portion, the hub having a recess in one of its side fecesand a central opening with a slot in its well substantially as setforth.

In testimony whereof I have signed in name to this specification in thepresencr of two subscribing Witnesses.

. ALFRED H. RENSH.-il

Witnesses:

E. ii. Semen, M. J. CUNNINGHAM.

